informaciÓn sÍsmica terremoto de italia - 6 de abril de...

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INFORMACIÓN SÍSMICA

Terremoto de Italia - 6 de abril de 2009

Según datos del Centro Nacional de Información de Terremotos del Servicio

Geológico de los Estados Unidos (NEIC-USGS, por sus siglas en inglés) el 6 de abril

de 2009 a las 03:32:42 de la madrugada (hora local de Italia) se registró un

terremoto de magnitud 6.3 Mw con epicentro a 95 km al NE de Roma. Este

terremoto fuerte se generó en la región central de Italia con una profundidad de

10 km, en la latitud 42.423 °N y longitud 13.395°E. El sismo fue sentido

ampliamente en toda Italia con una intensidad máxima de VII, hasta el momento

se han registrado numerosos daños y víctimas en distintos lugares del país.

Además el NEIC-USGS ha registrado varias réplicas asociadas al evento.

A continuación incluimos la información sísmica generada y publicada por

el NEIC-USGS (http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/us2009fcaf.php)

y el Centro Sismológico Euro-Mediterráneo (EMSE, por sus siglas en inglés;

http://www.emsc-csem.org/index.php?page=home). Un informe oficial del Terremoto de

L'Aquila (http://cnt.rm.ingv.it/~earthquake/data_id/2206496920/event.php) está disponible en

la página de internet del Instituto Nacional de Geofísica y Volcanología de Italia,

http://www.ingv.it/portale_ingv.

http://redsismica.uprm.edu

6 de abril de 2006, 12:30 pm

GBS

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Magnitude 6.3 - CENTRAL ITALY

2009 April 06 01:32:42 UTC

Versión en Español

• Details • Summary • Maps • Scientific & Technical • Additional Info

Where can I find...?

Earthquake Details

Magnitude 6.3

Date-Time

• Monday, April 06, 2009 at 01:32:42 UTC • Monday, April 06, 2009 at 03:32:42 AM at epicenter • Time of Earthquake in other Time Zones

Location 42.423°N, 13.395°E

Depth 10 km (6.2 miles) set by location program

Region CENTRAL ITALY

Distances

70 km (40 miles) W of Pescara, Italy

95 km (60 miles) NE of ROME, Italy

115 km (70 miles) SE of Perugia, Italy

135 km (85 miles) S of Ancona, Italy

Location Uncertainty horizontal +/- 4.6 km (2.9 miles); depth fixed by location program

Parameters

NST= 66, Nph= 66, Dmin=7.7 km, Rmss=0.95 sec, Gp= 50°,

M-type=teleseismic moment magnitude (Mw), Version=7

Source

• USGS NEIC (WDCS-D)

Event ID us2009fcaf

• This event has been reviewed by a seismologist.

Fuente NEIC-USGS: http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/us2009fcaf.php

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Earthquake Summary

Tectonic Summary

The April 6th 2009 earthquake in Central Italy occurred as a result of normal faulting on a NW-SE oriented structure in the central Apennines, a mountain belt that runs from the Gulf of Taranto in the south to the southern edge of the Po basin in northern Italy. Geologically, the Apennines are largely an accretionary wedge formed as a consequence of subduction. This region is tectonically and geologically complex, involving both subduction of the Adria micro-plate beneath the Apennines from east to west, continental collision between the Eurasia and Africa plates building the Alpine mountain belt further to the north and the opening of the Tyrrhenian basin to the west. The evolution of this system has caused the expression of all different tectonic styles acting at the same time in a broad region surrounding Italy and the central Mediterranean. The April 6th, 2009 earthquake is related to normal faulting and the east-west extensional tectonics that dominate along the entire Apennine belt, primarily a response to the Tyrrhenian basin opening faster than the compression between the Eurasian and African plates.

The central Apennine region has experienced several significant earthquakes in recorded history. In 1997, a significant Mw 6.0 earthquake 85 km north-northwest of the April 6th 2009 event killed 11, injured over 100 and destroyed approximately 80,000 homes in the Marche and Umbria regions. This 1997 event was part of a series of earthquakes known as the Umbria-Marche seismic sequence, which included eight events of magnitude greater than M5.0 in a two-month period between September and November of that year.

Earthquake Information for Europe: http://earthquake.usgs.gov/regional/world/index.php?region=Europe Earthquake Information for Italy: http://earthquake.usgs.gov/regional/world/index.php?region=Italy

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NEIC-USGS Phase Data - Explanation of Parameters

6 APR 2009 ( 96)

ot = 01:32:42.44 +/- 0.22 CENTRAL ITALY

lat = 42.423 +/- 3.3

lon = 13.395 +/- 3.2 MAGNITUDE 6.3 (GS)

dep = 10.0 (geophysicist)

70 km (40 miles) W of Pescara, Italy (pop 115,000)

95 km (60 miles) NE of ROME, Italy (pop 2,643,000)

115 km (70 miles) SE of Perugia, Italy (pop 156,000)

135 km (85 miles) S of Ancona, Italy (pop 98,000)

nph = 66 of 71 se = 0.95 FE=381 A

error ellipse = (217.4, 0.0, 4.6;127.4, 0.0, 3.8; 0.0, 0.0, 0.0)

mb = 6.0 ( 24) ML = 5.6 ( 8) mblg = 4.8 ( 21) md = 0.0 ( 0) MS = 0.0 ( 0)

USGS Centroid Moment Tensor Solution

09/04/06 01:32:42.64

CENTRAL ITALY

Epicenter: 42.398 13.367

MW 6.3

USGS CENTROID MOMENT TENSOR

09/04/06 01:32:54.79

Centroid: 42.737 13.470

Depth 10 No. of sta:114

Moment Tensor; Scale 10**18 Nm

Mrr=-3.07 Mtt= 1.27

Mpp= 1.80 Mrt=-1.23

Mrp=-0.26 Mtp=-1.65

Principal axes:

T Val= 3.27 Plg= 5 Azm=227

N 0.22 17 135

P -3.49 71 334

Best Double Couple:Mo=3.4*10**18

NP1:Strike=337 Dip=42 Slip= -62

NP2: 122 53 -112

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M6.3 – Central Italy

Monday, April 6, 2009 at 01:32:42 UTC Monday, April 6, 2009 at 03:32:42 UTC+2

42.42°N, 13.39°E Depth: 10km

Réplicas procesadas en NEIC-USGS

http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/quakes_all.php

MAP 4.3 2009/04/06 07:17:14 42.448 13.363 10.0 CENTRAL ITALY



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ShakeMap NEIC-USGS

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Mapa Did You Feel It? NEIC-USGS

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Intensity vs. Distance

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Responses vs. Time

Summary of Responses by Zip

Location MMI Resp. Distance Latitude Longitude Acquafondata 2 1 107 41.55°N 13.95°E Acquaviva Picena 4 1 65 42.93°N 13.80°E Agnone 2 1 106 41.80°N 14.37°E Albano Laziale 3 1 98 41.72°N 12.66°E Amelia 4 2 82 42.56°N 12.41°E Ampezzo 5 1 445 46.41°N 12.79°E Anagni 3 1 77 41.75°N 13.14°E Ancona 2 4 131 43.60°N 13.50°E Angri 2 1 209 40.75°N 14.56°E Anzio 2 1 124 41.46°N 12.62°E Aprilia 3 1 110 41.60°N 12.65°E Arce 4 1 94 41.58°N 13.57°E Ardea 2 1 115 41.60°N 12.55°E Artena 5 1 84 41.75°N 12.91°E

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Location MMI Resp. Distance Latitude Longitude Ascoli Piceno 4 4 50 42.86°N 13.58°E Athens 1 1 1,008 37.98°N 23.73°E Aversa 5 1 173 40.98°N 14.19°E Avezzano 4 1 42 42.04°N 13.42°E Bari 3 1 323 41.12°N 16.87°E Borgo Maggiore 3 1 184 43.93°N 12.45°E Bucchianico 2 1 66 42.30°N 14.18°E Caivano 2 1 178 40.96°N 14.29°E Campagnano di Roma 3 1 89 42.13°N 12.38°E Caserta 2 3 168 41.07°N 14.32°E Cassino 5 2 108 41.50°N 13.82°E Castel Frentano 5 1 84 42.20°N 14.37°E Castel Gandolfo 2 1 96 41.75°N 12.65°E Castelforte 2 1 129 41.30°N 13.82°E Castellalto 3 1 44 42.67°N 13.82°E Castelnuovo di Porto 3 1 81 42.12°N 12.50°E Castilenti 4 1 44 42.53°N 13.92°E Cava deÊ¿ Tirreni 2 1 218 40.71°N 14.69°E Cepagatti 5 1 55 42.37°N 14.07°E Cesena 2 1 213 44.15°N 12.24°E Chieti 5 7 63 42.35°N 14.16°E Ciampino 2 3 95 41.80°N 12.60°E CittÃ di Castello 2 2 149 43.46°N 12.23°E Civitanova Marche 3 1 102 43.31°N 13.72°E Colonna 2 1 84 41.83°N 12.75°E Dogliola 3 2 115 41.93°N 14.63°E Faenza 3 2 241 44.29°N 11.87°E Falconara Marittima 2 2 134 43.63°N 13.39°E Fermo 3 1 86 43.17°N 13.70°E Fiano Romano 4 1 72 42.17°N 12.58°E Fiumicino 3 3 120 41.77°N 12.23°E Florence 2 6 231 43.78°N 11.24°E Foligno 2 2 82 42.96°N 12.70°E Fondi 4 1 118 41.36°N 13.42°E ForlÃ¬ 2 1 228 44.22°N 12.03°E Formia 3 1 130 41.26°N 13.59°E Fossato di Vico 3 1 110 43.30°N 12.77°E Francavilla al Mare 3 2 69 42.44°N 14.24°E Frascati 2 2 89 41.82°N 12.68°E Genazzano 3 1 74 41.83°N 12.97°E Genzano di Roma 2 1 99 41.71°N 12.67°E Giulianova 3 1 59 42.76°N 13.95°E Gualdo 5 1 54 42.88°N 13.17°E Guardiagrele 5 1 71 42.20°N 14.21°E Guidonia 4 1 74 42.02°N 12.68°E Isernia 3 2 119 41.59°N 14.31°E Jesi 2 1 122 43.52°N 13.24°E

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Location MMI Resp. Distance Latitude Longitude Knin 2 1 290 44.04°N 16.20°E Labico 3 1 83 41.78°N 12.88°E Lanciano 3 3 83 42.23°N 14.37°E Latina 3 3 113 41.47°N 12.89°E London 1 1 1,441 51.52°N 0.10°W Loreto Aprutino 6 1 48 42.43°N 13.98°E LÊ¿Aquila 7 1 8 42.35°N 13.39°E Macerata 3 1 97 43.30°N 13.44°E Manoppello 4 1 57 42.25°N 14.05°E Marano di Napoli 2 1 181 40.90°N 14.18°E Matelica 3 1 99 43.27°N 13.01°E Mazzano Romano 3 1 85 42.20°N 12.40°E Meta 1 1 214 40.65°N 14.40°E Mira 1 1 351 45.45°N 12.12°E Monte di Procida 2 3 188 40.80°N 14.05°E Montefalcone Appennino 3 1 62 42.98°N 13.47°E Monterotondo 4 1 76 42.05°N 12.62°E Montopoli in Val dÊ¿Arno 2 1 255 43.67°N 10.76°E Mordano 2 1 254 44.40°N 11.82°E Morlupo 3 1 80 42.13°N 12.50°E Naples 2 31 189 40.85°N 14.27°E Nocera Umbra 1 1 88 43.08°N 12.78°E Nottingham 2 1 1,603 52.97°N 1.18°W Numana 3 1 123 43.52°N 13.62°E Ortona 5 2 82 42.36°N 14.39°E Osimo 4 3 118 43.49°N 13.47°E Ozzano DellÊ¿Emilia 2 1 273 44.45°N 11.47°E Paciano 3 1 127 43.02°N 12.07°E Padova 2 1 353 45.41°N 11.87°E Palestrina 2 2 81 41.85°N 12.77°E Parma 1 1 363 44.81°N 10.32°E Pergola 3 1 135 43.57°N 12.83°E Perugia 2 4 112 43.11°N 12.39°E Pesaro 3 4 170 43.92°N 12.91°E Pescara 4 13 67 42.46°N 14.21°E Piano di Sorrento 1 1 215 40.64°N 14.40°E Picciano 2 1 48 42.47°N 13.98°E Pisa 1 1 283 43.72°N 10.40°E Poggio Catino 2 2 60 42.30°N 12.68°E Poggio Mirteto 5 1 61 42.27°N 12.68°E Pomezia 2 1 110 41.68°N 12.51°E Porto SantÊ¿Elpidio 2 1 97 43.26°N 13.76°E Pozzuoli 2 4 186 40.83°N 14.12°E PÃ¡trai 1 1 847 38.24°N 21.73°E Reading 2 1 1,485 51.45°N 0.98°W Recanati 3 1 110 43.41°N 13.54°E Riano 2 1 80 42.08°N 12.53°E

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Location MMI Resp. Distance Latitude Longitude Riccione 3 1 186 44.01°N 12.65°E Rieti 3 1 44 42.41°N 12.86°E Rimini 3 2 193 44.06°N 12.57°E Rocca Priora 4 1 87 41.80°N 12.75°E Rome 3 244 94 41.89°N 12.50°E Salerno 2 1 225 40.68°N 14.77°E San Benedetto del Tronto 5 3 71 42.96°N 13.87°E San Cipriano dÊ¿Aversa 2 1 169 41.00°N 14.13°E Senigallia 3 1 144 43.72°N 13.21°E Serravalle 3 1 184 43.95°N 12.49°E Spoltore 6 1 60 42.45°N 14.13°E Supino 2 1 90 41.62°N 13.23°E Taranto 2 1 387 40.48°N 17.24°E Teramo 3 3 37 42.67°N 13.70°E Terni 4 7 63 42.57°N 12.65°E Terracina 5 1 125 41.30°N 13.24°E Tirana 2 1 547 41.33°N 19.82°E Tivoli 3 4 71 41.96°N 12.79°E Tolentino 5 1 88 43.21°N 13.27°E Urbino 3 1 159 43.74°N 12.63°E Varese 1 1 526 45.83°N 8.83°E Vasto 3 1 112 42.12°N 14.70°E Venice 2 1 344 45.43°N 12.33°E Vicenza 3 1 377 45.55°N 11.54°E Vignanello 3 1 91 42.38°N 12.28°E Villa Santa Lucia degli Abruzzi 6 2 32 42.32°N 13.77°E Viterbo 3 2 107 42.42°N 12.09°E Zurich 2 1 671 47.38°N 8.54°E

MM: Mercalli Modified Intensity Scale

Resp. Response

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Population and Intensity NEIC-USGS

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Centre Sismologique Euro-Méditerranéen European-Mediterranean Seismological Centre

Fuente: http://www.emsc-csem.org/index.php?page=home

Mw 6.3 Central Italy on April 06th, 2009 at 01:32 UTC

An earthquake of magnitude Mw 6.3 occurred on 06/04/2009 in central Italy, at 7 km North-West of L'Aquila (Abruzzo Region) at 01:32 UTC (03:32 local time). 59 km E Terni (pop 110,412) 7 km NW L'aquila (pop 72,279) 6 km S Pizzoli (pop 3,378) More information: http://www.emsc-csem.org/index.php?page=home

Earthquake Information

Summary:

Magnitude Mw 6.3

Region CENTRAL ITALY

Abrutian Apennine

Date time 2009-04-06 at 01:32:41.4 UTC

Location 42.38 N ; 13.32 E

Depth 2 km

Distances 59 km E Terni (pop 110,412 ; local time 03:32 2009-04-06) 7 km NW L'aquila (pop 72,279 ; local time 03:32 2009-04-06) 6 km S Pizzoli (pop 3,378 ; local time 03:32 2009-04-06)

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Epicenter Location

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Moment Tensors

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Aftershocks Distribution

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News Report

Monday 06th April, 12:00 UTC: According to the Italian officials, more than 50 people died, and 50,000 were left homeless. The epicenter was in L'Aquila (Abruzzo Region), a medieval fortress hill town, where a number of people were trapped under rubble. Source : ANSA : http://www.ansa.it Enel SpA cut electricity supply to 15,000 users as a “security measure” after the quake, a company spokeswoman said. Prime Minister Silvio Berlusconi declared a state of emergency to speed aid delivery to the region. The Civil Protection Department, said between 10,000 and 15,000 buildings were damaged. Stadiums and sporting fields are being readied to house the homeless.

Regional Seismicity

Last major quakes in Italy:

Oct. 31, 2002: 5.9-magnitude temblor that struck the south-central Molise region, killing 28 people, including 27 children who died when their school collapsed.

Sep. 26, 1997: 6.4-magnitude quake in Umbria (central Italy) near Assisi, killing 11 people

Nov. 23, 1980: 6.5-magnitude earthquake in Eboli, about 80km south of Naples, killing 2,700 people

May 6, 1976: 6.5-magnitude in North East Italy (Friuli), killing 1,000 people

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Regional Seismicity

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Regional Moment Tensors

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Damages in L'Aquila (Italy) 7 Km from the epicenter.

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Intensity map (generated with the results of the online questionnaire)

European Intensity Scale (EIS)

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Related Seismicity

2009-04-06 13:14:04.0 42.24 N 13.49 E 10 ML 3.2 CENTRAL ITALY




2009-04-06 07:17:16.1 42.47 N 13.40 E 30 mb 4.4 CENTRAL ITALY








2009-04-06 03:33:40.5 44.28 N 11.97 E 40 ML 3.4 NORTHERN ITALY






2009-04-06 02:37:05.2 42.40 N 13.31 E 2 Mw 5.1 CENTRAL ITALY




Date & Time

UTC

Latitude

degrees

Longitude

degrees

Depth

km

Mag. Region name

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2009-04-06 01:32:41.4 42.38 N 13.32 E 2 Mw 6.3 CENTRAL ITALY


2009-04-05 21:31:22.9 44.30 N 12.01 E 20 ML 2.5 NORTHERN ITALY


2009-04-05 20:20:52.4 44.33 N 11.98 E 10 Mw 4.8 NORTHERN ITALY

informaciÓn sÍsmica terremoto de italia - 6 de abril de...

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